Our stay was very satisfying. Owner of the place was very helpful and gave plenty of tips to get around the neighborhood.
However, there were signs in the building stating that it is illegal for the tourists to stay in the building and that the authorities should be notified by tenants if they see tourists staying in the building. We were not informed about that, so it was very uncomfortable to be outside the apartment and it was a reason why we didn't use the swimming pool. Luckily we didn't have any problems with the illegal stay in the building but it would be nice to be notified.
Other than that the apartment looked lovely, it was very clean and the view on Bangkok from 18th story was just breathtaking. I recommend this place.